DS1708REUA+ Maxim Integrated, DS1708REUA+ Datasheet - Page 4

• Manufacturer Part Number: DS1708REUA+
• Description: Supervisory Circuits 3.3/5V MicroMonitor
• Manufacturer: Maxim Integrated
• Series: DS1707, DS1708r

Specifications of DS1708REUA+

• Rohs: yes
• Number Of Voltages Monitored: 1
• Monitored Voltage: 3.3 V, 5 V
• Undervoltage Threshold: 2.55 V
• Overvoltage Threshold: 2.7 V
• Output Type: Active High, Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 285 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 85 C
• Package / Case: uMAX
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Supply Current (typ): 60 uA
• Supply Voltage - Min: 1.2 V
• Part # Aliases: 90-1708R+U00

TIMING DIAGRAM: PUSHBUTTON RESET Figure 4
NON-MASKABLE INTERRUPT CIRCUIT EXAMPLE Figure 5
V
Example:
Therefore:
SENSE
=
R1+
R2
R2
V
V
10 kΩ = R2
4.50 =
. 1
. 4
SENSE
CC
25
50
X 1.25
= 3.3V
X 3.3 = 11.88V maximum
= 4.50V at the trip point
R1 +
10k
10k
4 of 10
X 1.25
V
MAX
=
R1 = 26 kΩ
V
V
SENSE
TP
X V
CC